Not bad, actually. If you're into full-blown race holsters, Ghost makes a model specifically for the Rhino that works really well. I use the Chiappa/Ghost molded plastic one for the 6" Rhino - I've cut it all the way down to the front sight so it's a pretty short draw. Unfortunately, the Ghost hole spacing doesn't align with anyone else's so I made my own hanger for it.
There's lots of companies making Kydex holsters for the Rhino - my favorite is Dara. I bought their IDPA holster and then trimmed it down to the smallest it can go and still be IDPA legal. Like most companies, they only make a holster for the 4" Rhino (there are only two Rhino holster drones on the market - a 2" and a 4"). The good thing is that Chiappa uses one frame and attaches the longer barrels, so a 4" holster will work for a 2", 3", and 5" (as long as it doesn't wrap in front of the muzzle (and if it does - dremel time!)). 6" models, like my pair of Charging Rhinos, have the top rail so they need a specific holster.
While I'm on my long-winded soapbox... I also dabble in Kydex, so I'll probably make my own holster at some point specifically for the 5".
I'll have the Charging Rhino out at the Rocky Mountain Regional and the IRC. Grab me and give it a whirl!
I maintained for a bit that they'd never be as fast in competition as a Smith. I'm starting to backtrack a bit on that - with a little work (and a really good triggerman), I think they can hang. I'd never argue that they're better - only different. The difference-maker for me was having Toolguy/Protocall chamfer the ledges inside the cylinders on the .40 S&W guns. Suddenly, I can drop loaded moons from... the moon... and not have to worry about them seating all the way.